Chaeles moeelll



UNITED STATES- PATENT OFFICE.

CHARLES MORBILL, OF NEW YORK, N. Y.

SAW-SET.

SPECIFICATION forming part of Letters Patent No. 224,789, dated February 24, 1880.

Application filed February 24, 1879. i

- .To all whom it may concern:

Be it known that I, CHARLES MORRILL, of

' the city, county, and State of New York, have gitudinal section ofthe same; Fig. 4, a bottom view of the adjusting-plate; Fig. 5, a side view of the same; Fig. 6, a back view of the same.

In the drawings like parts of the invention are designated by the same letters of reference. The nature of the presentinvention consists in improvements, as more fully hereinafter set forth, in the construction of a saw-set, the object of the invention being the production of a saw-set that will set a saw of any width and do the work thoroughly without liability.

of springing the saw.

To enable those skilled in the arts to make and use my invention, I will describe the same.

A shows the handle of the saw-set, the up per portion of which is continued in its manufacture, and forms a supportfor the adjusting-plate B and the curved beam O, within which is received the die D. The handle A is also provided with the ways E E, in which the punch F, for setting the teeth of the saw, moves.

The die 9, is beveled upon its face, as at d, as shown in Fig. 3, the angle of the bevel bein g in a direct line with the lower side of the punch F, so that when thesaw is placed in the saw-set the root of the tooth comes at the angle, thereby preventing the bending of the saw-plate. A

The adjusting-plate B is made true upon its face or upper surface, and is swiveled about centrally upon the slotted franie-w orlg G, and, by loosening the screws y, can be raised and lowered to suit the length of the saw-teeth. The projecting portions 1) upon the plate B form guides for guiding the saw-set over the saw. 1

The slotted portion of the frame-work is placed over the boss-H, and into the same is passed a screw, I, by which the frame Gr is held in position, and, by unloosening the screw, can be moved forward and back upon the handle A.

The punch F is passed through the journals E E 'of the handle A, and over the punch F is passed a spiral spring, J, having its bearing between the under side of the journal E and a washer held upon the punch by a pin.

-Within the lugs LL upon the handle A is swiveled the cam-lever M, the cam portion of which is intended to have its bearing upon the rear end of the punch F, and, by depressing the lever, cause the punch to be thrown forward against the tooth of the saw to be set.

Asthe punch is thrown forward the spiral spring J is compressed, and by releasing the hold upon the lever M the punch and lever are restored to their former position.

Such being the construction, the operation is as follows: The adjusting-plate B is adjustcd or regulated to suit the fineness or coarseness of the saw by moving the plate G" forward or backward, and is then adjusted to suit the capacity of the saw by means of the screws 9. The saw-set is then passed over the saw to be set, and as each tooth to be set is brought directly in front of the punch F the lever M is depressed, which throws the punch F forward, forcing the tooth to, be set against the die D.

It will be observed that the root of the tooth is brought at the angle of the die and that the face of the die and of the punch are at right angles to each other always. Thus the tooth of the saw is brought up by the punch against the die and set without straining the saw or breaking the teeth.

The set will set any saw from a quarter of an inch upward, and can be used for setting band-saws, compass-saws, and jig-saws.

. Having now set forth my invention, what I claim as new is- The adjusting-plate B, in combination with the slotted frame-work G and die 1D, constructed and operating substantially as and for the purpose set forth.

CHARLES MOBRILL.

In presence of A. SIDNEY DOANE, J. KEATING. 

